… , a small developing country in West Africa, we evaluated two … with another vaccine, preferably
diphtheria-tetanus-pertussis … Vaccine derived immunity to pertussis is known to wane in …

… have shown that the diphtheria or tetanus antitoxin content of … The immunity of the former is,
however, a passive immunity … on diphtheri:J immunity; our investigations in South Africa, how…

… Many countries in sub-Saharan Africa are implementing this … Multicentre, collaborative
studies across the country would be … in view of the fact that tetanus immunity can last up to five …

… Tetanus infection associated with men who had male circumcision has been reported in
East Africa, suggesting a need for tetanus … Tetanus immunity after diphtheria, tetanus toxoids,…

Background Despite a high coverage with measles vaccines in parts of west Africa, epidemics
of measles occur with reduced severity in an increasing proportion of older children who …

… induces weaker immune responses in a rural population than … highly prevalent in many
rural areas of Africa, are known to … tetanus toxoid vaccine [20, 33] suggested to us that immune …

… Community studies in West Africa have suggested that … being increased after receiving
diphtheria–tetanus–pertussis (DTP… Studies examining whether routine vaccines affect the immune …

… was to assess immunity levels against tetanus in the areas of … such as Africa, Asia, and Latin
America; neonatal tetanus is … tetanus toxoid), Td (tetanus toxoid with adult-type diphtheria) …

… diphtheria were insufficient to allow appropriate evaluation of serologic immunity, by country
of origin, but tetanus … seronegative children for tetanus and hepatitis B were from Africa, and …

… of immunity; active immunity and passive immunity. Active … Though Africa has made
tremendous progress in improving … by the WHO are diphtheria, pertussis, tetanus, mumps, and …